Contrail

Contrail is a minimal theme based on Tobias Bernard's minimal GTK theme mockup, found here

Try the Contrail Metacity theme, too! (works with Mutter)
Also, I recommend this GTK theme based on the same mockup that Contrail was.

Thanks to Andrew King for suggesting the name!

The wallpaper is Hole in the wall by Toms Atte

Known bugs:
-When using the Activities hot-corner, it often stays in the hover state when switching back to the desktop. This is a problem with GNOME-Shell itself.

Changelog:
1.0:
-initial release